import os
import pathlib

import sys
from dotenv import load_dotenv

DESCRIPTION = (
    "Discord will only create embeds for videos and images if they are "
    "smaller than 8 mb. We can 'abuse' this by creating a .html that "
    "contains the 'twitter:player' HTML meta tag linking to the video."
)
# Load environment variables
load_dotenv()

# Check if user has added a domain to the environment.
try:
    serve_domain = os.environ["SERVE_DOMAIN"]
except KeyError:
    sys.exit("discord-embed: Environment variable 'SERVE_DOMAIN' is missing!")

# Remove trailing slash from domain
if serve_domain.endswith("/"):
    serve_domain = serve_domain[:-1]

# Check if we have a folder for uploads.
try:
    upload_folder = os.environ["UPLOAD_FOLDER"]
except KeyError:
    sys.exit("Environment variable 'UPLOAD_FOLDER' is missing!")

# Create upload_folder if it doesn't exist.
pathlib.Path(upload_folder).mkdir(parents=True, exist_ok=True)

# Remove trailing slash from upload_folder
if upload_folder.endswith("/"):
    upload_folder = upload_folder[:-1]

# Discord webhook URL
try:
    webhook_url = os.environ["WEBHOOK_URL"]
except KeyError:
    sys.exit("Environment variable 'WEBHOOK_URL' is missing!")